Difference between revisions of "Juniperus communis var. montana"
Hort. Kew. 3: 414. 1789.
Synonyms: Juniperus communis subsp. alpina (Smith) Celakovsky Juniperus communis subsp. nana (Willdenow) Syme Juniperus communis var. jackii Rehder Juniperus communis var. saxatilis Pallas Juniperus sibirica
Treatment appears in FNA Volume 2.
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Revision as of 20:51, 16 December 2019
Shrubs spreading to matlike, 0.5–1 m. Leaves upturned or upcurled, to 15 × 2 mm, linear-lanceolate, sometimes almost overlapping, glaucous stomatal band on adaxial leaf surface 2 or more times width of each green marginal band, apex acute to obtuse and mucronate. Seed cones 6–9 mm, shorter than leaves. 2n = 22.
Habitat: Dry rocky soil and rock crevices on slopes and summits
Elevation: 0–2500 m
Distribution
Greenland, B.C., Calif., Oreg., Wash.
Discussion
Juniperus communis var. montana is widespread throughout the Northern Hemisphere. Although the proposed var. jackii is quite distinct in the field (prostrate shrub with sparsely branched, whiplike, trailing branches), transplants indicate that the unusual growth form is environmentally induced (Steve Edwards, pers. comm.).
Selected References
None.
Lower Taxa
None.